/*
 * File      : stdlib.c
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2008, RT-Thread Development Team
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rt-thread.org/license/LICENSE
 *
 * Change Logs:
 * Date           Author       Notes
 * 2008-08-14     Bernard      the first version
 */

#include <rtthread.h>

#if !defined (RT_USING_NEWLIB) && defined (RT_USING_MINILIBC)
#include "stdlib.h"

int atoi(const char* s)
{
	long int v = 0;
	int sign = 1;

	while(*s == ' '  || (unsigned int)(*s - 9) < 5u) s++;

	switch(*s) {
		case '-':
			sign = -1;

		case '+':
			++s;
	}

	while((unsigned int)(*s - '0') < 10u) {
		v = v * 10 + *s - '0';
		++s;
	}

	return sign == -1 ? -v : v;
}

long int atol(const char* s)
{
	long int v = 0;
	int sign = 0;

	while(*s == ' '  || (unsigned int)(*s - 9) < 5u) ++s;

	switch(*s) {
		case '-':
			sign = -1;

		case '+':
			++s;
	}

	while((unsigned int)(*s - '0') < 10u) {
		v = v * 10 + *s - '0';
		++s;
	}

	return sign ? -v : v;
}

#ifdef RT_USING_HEAP
void* malloc(size_t size)
{
	return rt_malloc(size);
}

void free(void* ptr)
{
	rt_free(ptr);
}

void* realloc(void* ptr, size_t size)
{
	return rt_realloc(ptr, size);
}

void* calloc(size_t nelem, size_t elsize)
{
	return rt_calloc(nelem, elsize);
}
#endif

#endif
